Perhaps you should try some spelling variations:
"coder and coverage convolution functions" » "coder and coverage correlation functions" (Expand search), "coder and coverage contraction functions" (Expand search), "coder and coverage composition functions" (Expand search), "coder and coverage calculation functions" (Expand search), "coder and coverage conditions functions" (Expand search), "coder and coverage innovation functions" (Expand search), "coder and cover convolution functions" (Expand search), "code and coverage convolution functions" (Expand search), "codes and coverage convolution functions" (Expand search), "poder and coverage convolution functions" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa python python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder and coverage convolution functions") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder and coverage convolution functions\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder and coverage convolution functions ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder and coverage convolution functions") OR ("api python python python programming"))*.